Le lundi 19 juin 2006 17:16, Petr Pisar a écrit : > Simon Morlat wrote: > > SIP and RTP use UDP not TCP. > > This is not true. According to RFC every SIP implementation has to > support SIP over TCP. Clients are also supposted to be ready to recieve > SIP message over TCP even if previous message of dialogue comes via UDP. > This is because of client should use TCP instead of UDP if the message > lenght is larger then MTU - (cca) 200 B. > > -- Petr
You are right. I did not notice that in RFC3261. In practice, since RTP can only use UDP, I don't see the interest of using TCP/SIP in a audio-video phone. Simon > > > Le mercredi 14 juin 2006 21:39, William Bulley a écrit : > >> I have installed linphone 1.3.5 on two FreeBSD 6.1 machines > >> and demonstrated that it works as advertised on my local > >> (private) LAN between those two systems using non-routeable, > >> RFC-1918 (net ten) IP addresses. When I try to use linphone > >> across the Internet to another FreeBSD 6.1 user also running > >> linphone 1.3.5 (both of us have firewalls), it does not work > >> as advertised. We are able to connect using SIP and to chat > >> in the chat window (ASCII text only), so I do know that both > >> linphone configurations are correct at least for SIP. However, > >> no RTP audio works between the two instances: my local linphone > >> and the remote (to me) user's linphone. > >> > >> Both of our firewalls have been configured to allow inbound > >> access from any source to our local LAN machines for both > >> the SIP protocol (on TCP port 5060) and the RTP protocol (on > >> TCP port 7078). Since the complete linphone application is > >> known to work on my local LAN between two local machines, I > >> am suspecting that something is amiss with the configuration > >> of the firewall on my end or the firewall on the other end. > >> > >> I can give further details of my firewall setup if needed, > >> but I thought I might ask here first if there is something > >> else that I need to check. Maybe I am missing something > >> obvious (but not to a new user of linphone) that is simple > >> to correct. Thanks! > >> > >> Regards, > >> > >> web... > >> > >> -- > >> William Bulley Email: [EMAIL PROTECTED] > >> > >> > >> > >> _______________________________________________ > >> Linphone-users mailing list > >> [email protected] > >> http://lists.nongnu.org/mailman/listinfo/linphone-users > > _______________________________________________ > Linphone-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/linphone-users _______________________________________________ Linphone-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/linphone-users
